<?php

/*
 * 2007-2014 PrestaShop
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to http://www.prestashop.com for more information.
 *
 *  @author PrestaShop SA <contact@prestashop.com>
 *  @copyright  2007-2014 PrestaShop SA
 *  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 *  International Registered Trademark & Property of PrestaShop SA
 */

class SupplierCore extends ObjectModel {

    public $id;

    /** @var integer supplier ID */
    public $id_supplier;

    /** @var string Name */
    public $name;

    /** @var string First Name */
    public $first_name;

    /** @var string Last Name */
    public $last_name;

    /** @var string Email */
    public $email;

    /** @var string A short description for the discount */
    public $description;

    /** @var string Object creation date */
    public $date_add;

    /** @var string Object last modification date */
    public $date_upd;

    /** @var string Friendly URL */
    public $link_rewrite;

    /** @var string Meta title */
    public $meta_title;

    /** @var string Meta keywords */
    public $meta_keywords;

    /** @var string Meta description */
    public $meta_description;

    /** @var boolean active */
    public $active;

    /**
     * @see ObjectModel::$definition
     */
    public static $definition = array(
        'table' => 'supplier',
        'primary' => 'id_supplier',
        'multilang' => true,
        'fields' => array(
//			'name' => 				array('type' => self::TYPE_STRING, 'validate' => 'isCatalogName', 'required' => true, 'size' => 64),
            'first_name' => array('type' => self::TYPE_STRING, 'validate' => 'isCatalogName', 'required' => true, 'size' => 64),
            'last_name' => array('type' => self::TYPE_STRING, 'validate' => 'isCatalogName', 'required' => true, 'size' => 64),
            'email' => array('type' => self::TYPE_STRING, 'validate' => 'isEmail', 'required' => true, 'size' => 128),
            'active' => array('type' => self::TYPE_BOOL),
            'date_add' => array('type' => self::TYPE_DATE, 'validate' => 'isDate'),
            'date_upd' => array('type' => self::TYPE_DATE, 'validate' => 'isDate'),
            // Lang fields
            'description' => array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isCleanHtml'),
            'meta_title' => array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 128),
            'meta_description' => array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
            'meta_keywords' => array('type' => self::TYPE_STRING, 'lang' => true, 'validate' => 'isGenericName', 'size' => 255),
        ),
    );
    protected $webserviceParameters = array(
        'fields' => array(
            'link_rewrite' => array('sqlId' => 'link_rewrite'),
        ),
    );

    public function __construct($id = null, $id_lang = null) {
        parent::__construct($id, $id_lang);

        $this->link_rewrite = $this->getLink();
        $this->image_dir = _PS_SUPP_IMG_DIR_;
    }

    public function getLink() {
        return Tools::link_rewrite($this->name);
    }

    /**
     * Return suppliers
     *
     * @return array Suppliers
     */
    public static function getSuppliers($get_nb_products = false, $id_lang = 0, $active = true, $p = false, $n = false, $all_groups = false) {
        if (!$id_lang)
            $id_lang = Configuration::get('PS_LANG_DEFAULT');
        if (!Group::isFeatureActive())
            $all_groups = true;

        $query = new DbQuery();
        $query->select('s.*, sl.`description`');
        $query->from('supplier', 's');
        $query->leftJoin('supplier_lang', 'sl', 's.`id_supplier` = sl.`id_supplier` AND sl.`id_lang` = ' . (int) $id_lang);
        $query->join(Shop::addSqlAssociation('supplier', 's'));
        if ($active)
            $query->where('s.`active` = 1');
        $query->orderBy(' s.`name` ASC');
        $query->limit($n, ($p - 1) * $n);
        $query->groupBy('s.id_supplier');

        $suppliers = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($query);
        if ($suppliers === false)
            return false;
        if ($get_nb_products) {
            $sql_groups = '';
            if (!$all_groups) {
                $groups = FrontController::getCurrentCustomerGroups();
                $sql_groups = (count($groups) ? 'IN (' . implode(',', $groups) . ')' : '= 1');
            }

            foreach ($suppliers as $key => $supplier) {
                $sql = '
					SELECT DISTINCT(ps.`id_product`)
					FROM `' . _DB_PREFIX_ . 'product_supplier` ps
					JOIN `' . _DB_PREFIX_ . 'product` p ON (ps.`id_product`= p.`id_product`)
					' . Shop::addSqlAssociation('product', 'p') . '
					WHERE ps.`id_supplier` = ' . (int) $supplier['id_supplier'] . '
					AND ps.id_product_attribute = 0' .
                        ($active ? ' AND product_shop.`active` = 1' : '') .
                        ' AND product_shop.`visibility` NOT IN ("none")' .
                        ($all_groups ? '' : '
					AND ps.`id_product` IN (
						SELECT cp.`id_product`
						FROM `' . _DB_PREFIX_ . 'category_group` cg
						LEFT JOIN `' . _DB_PREFIX_ . 'category_product` cp ON (cp.`id_category` = cg.`id_category`)
						WHERE cg.`id_group` ' . $sql_groups . '
					)');
                $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
                $suppliers[$key]['nb_products'] = count($result);
            }
        }

        $nb_suppliers = count($suppliers);
        $rewrite_settings = (int) Configuration::get('PS_REWRITING_SETTINGS');
        for ($i = 0; $i < $nb_suppliers; $i++)
            $suppliers[$i]['link_rewrite'] = ($rewrite_settings ? Tools::link_rewrite($suppliers[$i]['name']) : 0);
        return $suppliers;
    }

    /**
     * Return name from id
     *
     * @param integer $id_supplier Supplier ID
     * @return string name
     */
    static protected $cache_name = array();

    public static function getNameById($id_supplier) {
        if (!isset(self::$cache_name[$id_supplier]))
            self::$cache_name[$id_supplier] = Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT `name` FROM `' . _DB_PREFIX_ . 'supplier` WHERE `id_supplier` = ' . (int) $id_supplier);
        return self::$cache_name[$id_supplier];
    }

    public static function getIdByName($name) {
        $result = Db::getInstance()->getRow('
		SELECT `id_supplier`
		FROM `' . _DB_PREFIX_ . 'supplier`
		WHERE `name` = \'' . pSQL($name) . '\'');

        if (isset($result['id_supplier']))
            return (int) $result['id_supplier'];

        return false;
    }

    public static function getProducts($id_supplier, $id_lang, $p, $n, $order_by = null, $order_way = null, $get_total = false, $active = true, $active_category = true) {
        $context = Context::getContext();
        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront')))
            $front = false;

        if ($p < 1)
            $p = 1;
        if (empty($order_by) || $order_by == 'position')
            $order_by = 'name';
        if (empty($order_way))
            $order_way = 'ASC';

        if (!Validate::isOrderBy($order_by) || !Validate::isOrderWay($order_way))
            die(Tools::displayError());

        $sql_groups = '';
        if (Group::isFeatureActive()) {
            $groups = FrontController::getCurrentCustomerGroups();
            $sql_groups = 'WHERE cg.`id_group` ' . (count($groups) ? 'IN (' . implode(',', $groups) . ')' : '= 1');
        }

        /* Return only the number of products */
        if ($get_total)
            return (int) Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
			SELECT COUNT(DISTINCT ps.`id_product`)
			FROM `' . _DB_PREFIX_ . 'product_supplier` ps
			JOIN `' . _DB_PREFIX_ . 'product` p ON (ps.`id_product`= p.`id_product`)
			' . Shop::addSqlAssociation('product', 'p') . '
			WHERE ps.`id_supplier` = ' . (int) $id_supplier . '
			AND ps.id_product_attribute = 0
			' . ($active ? ' AND product_shop.`active` = 1' : '') . '
			' . ($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '') . '
			AND p.`id_product` IN (
				SELECT cp.`id_product`
				FROM `' . _DB_PREFIX_ . 'category_product` cp
				' . (Group::isFeatureActive() ? 'LEFT JOIN `' . _DB_PREFIX_ . 'category_group` cg ON (cp.`id_category` = cg.`id_category`)' : '') . '
				' . ($active_category ? ' INNER JOIN `' . _DB_PREFIX_ . 'category` ca ON cp.`id_category` = ca.`id_category` AND ca.`active` = 1' : '') . '
				' . $sql_groups . '
			)');

        $nb_days_new_product = Validate::isUnsignedInt(Configuration::get('PS_NB_DAYS_NEW_PRODUCT')) ? Configuration::get('PS_NB_DAYS_NEW_PRODUCT') : 20;

        if (strpos('.', $order_by) > 0) {
            $order_by = explode('.', $order_by);
            $order_by = pSQL($order_by[0]) . '.`' . pSQL($order_by[1]) . '`';
        }
        $alias = '';
        if (in_array($order_by, array('price', 'date_add', 'date_upd')))
            $alias = 'product_shop.';
        elseif ($order_by == 'id_product')
            $alias = 'p.';
        elseif ($order_by == 'manufacturer_name') {
            $order_by = 'name';
            $alias = 'm.';
        }

        $sql = 'SELECT p.*, product_shop.*, stock.out_of_stock,
					IFNULL(stock.quantity, 0) as quantity,
					pl.`description`,
					pl.`description_short`,
					pl.`link_rewrite`,
					pl.`meta_description`,
					pl.`meta_keywords`,
					pl.`meta_title`,
					pl.`name`,
					MAX(image_shop.`id_image`) id_image,
					il.`legend`,
					s.`name` AS supplier_name,
					DATEDIFF(p.`date_add`, DATE_SUB(NOW(), INTERVAL ' . ($nb_days_new_product) . ' DAY)) > 0 AS new,
					m.`name` AS manufacturer_name
				FROM `' . _DB_PREFIX_ . 'product` p
				' . Shop::addSqlAssociation('product', 'p') . '
				JOIN `' . _DB_PREFIX_ . 'product_supplier` ps ON (ps.id_product = p.id_product
					AND ps.id_product_attribute = 0)
				LEFT JOIN `' . _DB_PREFIX_ . 'product_lang` pl ON (p.`id_product` = pl.`id_product`
					AND pl.`id_lang` = ' . (int) $id_lang . Shop::addSqlRestrictionOnLang('pl') . ')
				LEFT JOIN `' . _DB_PREFIX_ . 'image` i ON (i.`id_product` = p.`id_product`)' .
                Shop::addSqlAssociation('image', 'i', false, 'image_shop.cover=1') . '
				LEFT JOIN `' . _DB_PREFIX_ . 'image_lang` il ON (i.`id_image` = il.`id_image`
					AND il.`id_lang` = ' . (int) $id_lang . ')
				LEFT JOIN `' . _DB_PREFIX_ . 'supplier` s ON s.`id_supplier` = p.`id_supplier`
				LEFT JOIN `' . _DB_PREFIX_ . 'manufacturer` m ON m.`id_manufacturer` = p.`id_manufacturer`
				' . Product::sqlStock('p') . '
				WHERE ps.`id_supplier` = ' . (int) $id_supplier . '
					' . ($active ? ' AND product_shop.`active` = 1' : '') . '
					' . ($front ? ' AND product_shop.`visibility` IN ("both", "catalog")' : '') . '
					AND p.`id_product` IN (
						SELECT cp.`id_product`
						FROM `' . _DB_PREFIX_ . 'category_product` cp
						' . (Group::isFeatureActive() ? 'LEFT JOIN `' . _DB_PREFIX_ . 'category_group` cg ON (cp.`id_category` = cg.`id_category`)' : '') . '
						' . ($active_category ? ' INNER JOIN `' . _DB_PREFIX_ . 'category` ca ON cp.`id_category` = ca.`id_category` AND ca.`active` = 1' : '') . '
						' . $sql_groups . '
					)
				GROUP BY product_shop.id_product
				ORDER BY ' . $alias . pSQL($order_by) . ' ' . pSQL($order_way) . '
				LIMIT ' . (((int) $p - 1) * (int) $n) . ',' . (int) $n;

        $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);

        if (!$result)
            return false;

        if ($order_by == 'price')
            Tools::orderbyPrice($result, $order_way);

        return Product::getProductsProperties($id_lang, $result);
    }

    public function getProductsLite($id_lang) {
        $context = Context::getContext();
        $front = true;
        if (!in_array($context->controller->controller_type, array('front', 'modulefront')))
            $front = false;

        $sql = '
			SELECT p.`id_product`,
				   pl.`name`
			FROM `' . _DB_PREFIX_ . 'product` p
			' . Shop::addSqlAssociation('product', 'p') . '
			LEFT JOIN `' . _DB_PREFIX_ . 'product_lang` pl ON (
				p.`id_product` = pl.`id_product`
				AND pl.`id_lang` = ' . (int) $id_lang . '
			)
			INNER JOIN `' . _DB_PREFIX_ . 'product_supplier` ps ON (
				ps.`id_product` = p.`id_product`
				AND ps.`id_supplier` = ' . (int) $this->id . '
			)
			' . ($front ? ' WHERE product_shop.`visibility` IN ("both", "catalog")' : '') . '
			GROUP BY p.`id_product`';

        $res = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
        return $res;
    }

    /*
     * Tells if a supplier exists
     *
     * @param $id_supplier Supplier id
     * @return boolean
     */

    public static function supplierExists($id_supplier) {
        $query = new DbQuery();
        $query->select('id_supplier');
        $query->from('supplier');
        $query->where('id_supplier = ' . (int) $id_supplier);
        $res = Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue($query);

        return ($res > 0);
    }

    /**
     * @see ObjectModel::delete()
     */
    public function delete() {
        if (parent::delete()) {
            CartRule::cleanProductRuleIntegrity('suppliers', $this->id);
            return $this->deleteImage();
        }
    }

    /**
     * Gets product informations
     *
     * @since 1.5.0
     * @param int $id_supplier
     * @param int $id_product
     * @param int $id_product_attribute
     * @return array
     */
    public static function getProductInformationsBySupplier($id_supplier, $id_product, $id_product_attribute = 0) {
        $query = new DbQuery();
        $query->select('product_supplier_reference, product_supplier_price_te, id_currency');
        $query->from('product_supplier');
        $query->where('id_supplier = ' . (int) $id_supplier);
        $query->where('id_product = ' . (int) $id_product);
        $query->where('id_product_attribute = ' . (int) $id_product_attribute);
        $res = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($query);

        if (count($res))
            return $res[0];
    }

}
